| 優 | [ yoū ] excellent, superior |
| 優伶 | [ yoū líng ] (old) performing artist, actor, actress |
| 優先 | [ yoū xiān ] to have priority, to take precedence |
| 優先承購權 | [ yoū xiān chéng goù quán ] prior purchase right, right of first refusal (ROFR), preemptive right to purchase |
| 優先股 | [ yoū xiān gǔ ] preferred stock |
| 優先認股權 | [ yoū xiān rèn gǔ quán ] preemptive right (in share issue) |
| 優劣 | [ yoū liè ] good and bad, merits and drawbacks |
| 優勝 | [ yoū shèng ] winning, superior |
| 優勝劣敗 | [ yoū shèng liè baì ] see 優勝劣汰|优胜劣汰[you1 sheng4 lie4 tai4] |
| 優勝劣汰 | [ yoū shèng liè taì ] survival of the fittest (idiom) |
| 優勢 | [ yoū shì ] superiority, dominance, advantage |
| 優化 | [ yoū huà ] optimization, to optimize, to make superior |
| 優厚 | [ yoū hoù ] generous, liberal (pay, compensation) |
| 優哉遊哉 | [ yoū zaī yoú zaī ] see 悠哉悠哉[you1 zai1 you1 zai1] |
| 優孟 | [ yoū mèng ] You Meng, famous court jester during the reign of King Zhuang of Chu 楚莊王|楚庄王[Chu3 Zhuang1 wang2], known for his intelligence and sharp tongue |
| 優尼科 | [ yoū ní kē ] Unocal (US oil company) |
| 優待 | [ yoū daì ] preferential treatment, to give preferential treatment |
| 優待券 | [ yoū daì quàn ] discount coupon, complimentary ticket |
| 優待票 | [ yoū daì ] reduced-price ticket (e.g. for students) |
| 優惠 | [ yoū huì ] privilege, favorable (terms), preferential (treatment), discount (price) |
| 優惠券 | [ yoū huì quàn ] coupon |
| 優惠貸款 | [ yoū huì daì kuǎn ] loan on favorable terms, concessionary loan, soft loan |
| 優於 | [ yoū yú ] to surpass |
| 優柔 | [ yoū roú ] gentle, carefree, indecisive, weak |
| 優柔寡斷 | [ yoū roú guǎ duàn ] indecisive, irresolute |
| 優格 | [ yoū gé ] yogurt (loanword) |
| 優步 | [ yoū bù ] Uber, app-based taxi company founded in 2009 |
| 優渥 | [ yoū wò ] handsome (pay etc), generous, liberal |
| 優生 | [ yoū shēng ] eugenics, outstanding student |
| 優生學 | [ yoū shēng xué ] eugenics |
| 優異 | [ yoū yì ] exceptional, outstandingly good |
| 優異獎 | [ yoū yì jiǎng ] excellence award, merit award |
| 優盤 | [ yoū pán ] USB flash drive, see also 閃存盤|闪存盘[shan3 cun2 pan2] |
| 優秀 | [ yoū xiù ] outstanding, excellent |
| 優等 | [ yoū děng ] first-rate, of the highest order, high-class, excellent, superior |
| 優美 | [ yoū meǐ ] graceful, fine, elegant |
| 優良 | [ yoū liáng ] fine, good, first-rate |
| 優衣庫 | [ yoū yī kù ] Uniqlo, Japanese clothing brand |
| 優裕 | [ yoū yù ] plenty, abundance |
| 優角 | [ yoū ] reflex angle |
| 優諾牌 | [ yoū nuò paí ] Uno (card game) |
| 優質 | [ yoū zhì ] excellent quality |
| 優越 | [ yoū yuè ] superior, superiority |
| 優遊 | [ yoū yoú ] carefree, leisurely |
| 優遊自得 | [ yoū yoú zì dé ] free and at leisure (idiom); unfettered |
| 優選 | [ yoū xuǎn ] to optimize, preferred |
| 優酪乳 | [ yoū luò rǔ ] yogurt (loanword) (Tw) |
| 優酷 | [ yoū kù ] Youku, Chinese video hosting platform |
| 優雅 | [ yoū yǎ ] grace, graceful |
| 優點 | [ yoū diǎn ] merit, benefit, strong point, advantage, CL:個|个[ge4],項|项[xiang4] |
| ⇒ 佔優勢 | [ zhàn yoū shì ] to predominate, to occupy a dominant position |
| ⇒ 全優 | [ quán yoū ] overall excellence |
| ⇒ 兼優 | [ jiān yoū ] an all-rounder, good at everything |
| ⇒ 創優 | [ chuàng yoū ] to strive for excellence |
| ⇒ 占優 | [ zhàn yoū ] to dominate, dominant |
| ⇒ 名優 | [ míng yoū ] excellent quality, outstanding (product), abbr. for 名牌優質|名牌优质, (old) famous actor or actress |
| ⇒ 品學兼優 | [ pǐn xué jiān yoū ] excelling both in morals and studies (idiom); top marks for studies and for behavior (at school), a paragon of virtue and learning |
| ⇒ 女優 | [ nǚ yoū ] actress |
| ⇒ 女士優先 | [ nǚ shì yoū xiān ] Ladies first! |
| ⇒ 孰優孰劣 | [ shú yoū shú liè ] which of the two is better? |
| ⇒ 學而優則仕 | [ xué ér yoū zé shì ] one who is successful in one's studies, can become an official (idiom) |
| ⇒ 帕累托最優 | [ pà leì tuō zuì yoū ] Pareto efficiency (economics), Pareto optimality |
| ⇒ 從優 | [ cóng yoū ] preferential treatment, most favored terms |
| ⇒ 愛優騰 | [ aì yoū téng ] abbr. for iQiyi 愛奇藝|爱奇艺[Ai4 Qi2 yi4], Youku 優酷|优酷[You1 ku4] and Tencent 騰訊|腾讯[Teng2 xun4] |
| ⇒ 最優 | [ zuì yoū ] optimal, optimum |
| ⇒ 最優化 | [ zuì yoū huà ] optimization (math.) |
| ⇒ 績優股 | [ jì yoū gǔ ] gilt-edged stock, blue chip stock |
| ⇒ 聲優 | [ shēng yoū ] voice actor (loanword from Japanese 声優 seiyū) |
| ⇒ 葛優 | [ gě yoū ] Ge You (1957-), Chinese actor |
| ⇒ 葛優躺 | [ gě yoū tǎng ] see 北京癱|北京瘫[Bei3 jing1 tan1] |
| ⇒ 被優化掉 | [ beì yoū huà ] lit. to be optimized away, to be fired, to be the victim of downsizing |
| ⇒ 詞優效應 | [ cí yoū yìng ] word superiority effect |
| ⇒ 資優 | [ zī yoū ] (Tw) (of a student) gifted |
| ⇒ 資優班 | [ zī yoū bān ] class composed of gifted students (Tw) |
| ⇒ 資優生 | [ zī yoū shēng ] brilliant student |
| ⇒ 養尊處優 | [ yǎng zūn chǔ yoū ] to live like a prince (idiom) |